The hero, Vikram, also plays the role of an eyesorish man and make-up for the character was done by Weta Digital, which offers digital production services, including special visual effects, animation besides art work, make-up.
"We wanted aesthetic eyesorish looks," P C Sreeram, cinematographer said in the "Making of I," audio-visual presentation.
Director Shankar said he approached Weta as the job was challenging. "This is the first time Weta is doing an Indian film."
The studio won academy awards for best visual effects in movies, including James Cameron directorial 'Avatar' and Peter Jackson's 'Lord of the Rings'.